( n. )
A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally.
( n. )
A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012